diff --git a/day 3/index.ts b/day 3/index.ts
new file mode 100644
index 0000000..ccd56c7
--- /dev/null
+++ b/day 3/index.ts
@@ -0,0 +1,78 @@
+import { readFileSync } from "fs";
+
+const input = readFileSync('./input.txt').toString().split('\n');
+
+type coord = `${number}:${number}`
+
+const coords: Record<coord, string> = {};
+
+const ignoreCoords: coord[] = []
+
+function formatCoords(x: number, y: number): coord {return `${x}:${y}`}
+
+// INPUT CURRENT COORDS
+function checkNumChar(x: number, y: number, currentNum?: string): undefined | string {
+   if (ignoreCoords.includes(formatCoords(x,y))) return
+   currentNum = currentNum ?? ""
+   const char = input[y][x];
+   if(isNaN(parseInt(char))) return currentNum;
+   ignoreCoords.push(formatCoords(x,y))
+   currentNum += char;
+   return checkNumChar(x+1, y, currentNum);
+}
+
+let i = 0;
+for(const line of input) {
+   let j = 0;
+   for (const char of line) {
+      if (char === ".") {
+         j++;
+         continue;
+      } else if(isNaN(parseInt(char))) {
+         coords[formatCoords(j,i)] = char
+      } else {
+         const num = checkNumChar(j,i);
+         // console.log(num)
+         if(num) coords[formatCoords(j,i)] = num as string
+      }
+      j++;
+   }
+   i++;
+}
+
+// Part 1
+let sum = 0;
+for(const [loc, val] of Object.entries(coords)) {
+   if(isNaN(parseInt(val))) continue;
+
+   // Parse Coords
+   const [x,y] = loc.match(/\d+/g)!.map(s => parseInt(s)) as [number, number]
+
+   // Check Next Door
+   const lx = x-1;
+   const rx = x + 1 + val.length;
+
+   if(
+      coords[formatCoords(lx,y)] ||
+      coords[formatCoords(rx,y)]
+   ) {
+      sum += parseInt(val);
+      continue;
+   }
+   
+   // Check Above / Below w/ diagonals
+   const ay = y - 1;
+   const by = y + 1;
+
+   for(let i = -1; i <= val.length; i++) {
+      if(
+         coords[formatCoords(x+i, ay)] ||
+         coords[formatCoords(x+i, by)]
+      ) {
+         sum += parseInt(val)
+         break;
+      }
+   }
+}
+
+console.log(sum);
diff --git a/day 3/input.txt b/day 3/input.txt
new file mode 100644
index 0000000..9a6ea53
--- /dev/null
+++ b/day 3/input.txt
@@ -0,0 +1,140 @@
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\ No newline at end of file